Compare: Responsive Viewer vs CSS Peeper

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Short description	Instantly preview multiple screen sizes in one Chrome view. Fast, privacy-friendly responsive testing for front-end developers. Open-source.	Inspect and extract design properties from any site in seconds with CSS Peeper. Fast, visual, code-free workflow for designers and developers.
Full summary	Responsive Viewer lets front-end developers preview multiple screen sizes simultaneously inside Chrome. Quickly test responsive layouts, breakpoints, and UI across devices without switching tabs or manually resizing windows. The extension displays multiple screen frames in a single view so you can iterate faster while building responsive websites and web apps. Privacy-first and open-source: Responsive Viewer does not collect, store, or track any personal data. Source code is available on GitHub (https://github.com/skmail/responsive-viewer). Icon by Dima Hamayunau (https://dribbble.com/abybe).	CSS Peeper is the ultimate Chrome extension for designers and developers who want a seamless way to inspect and extract design properties from any website. Say goodbye to digging through complex code. The intuitive, organized interface gives you access to colors, typography, assets, and more in seconds. Join 500,000+ professionals who are saving time every day. With core features like color palettes, typography insights, and asset export—plus premium options to copy CSS, contrast checks, and a Sidebar Mode—you can streamline your workflow and design with confidence.